CN203574445U

CN203574445U - Intelligent controller of spare power automatic switching dual power supply device

Info

Publication number: CN203574445U
Application number: CN201320778172.2U
Authority: CN
Inventors: 李玉亮
Original assignee: ZHEJIANG JULI ELECTRICAL CO Ltd
Current assignee: ZHEJIANG JULI ELECTRICAL CO Ltd
Priority date: 2013-11-20
Filing date: 2013-11-20
Publication date: 2014-04-30
Anticipated expiration: 2023-11-20

Abstract

The utility model provides an intelligent controller of a spare power automatic switching dual power supply device. The intelligent controller includes a program software, a single chip microcomputer control circuit, and an auxiliary power supply module, a signal sampling module, a position detecting module, a parameter setting module, an output control module and a communication interface module which are connected with the single chip microcomputer control circuit; and after analyzing and comparing an AC signal obtained by the signal sampling module, a position signal obtained by the position detecting module, a set value of the parameter setting module, the single chip microcomputer control circuit can output a control signal to convert an power supply, or output a control signal to open and release a breaker. The intelligent controller is controlled by the single chip microcomputer, the speed of power supply conversion is fast, no-priority spare power automatic switching and priority spare power automatic switching can be carried out, the protective breaker can be forced to release and to dually protect a circuit, the intelligent controller can be networked with a background computer through the communication interface module, and the intelligent controller is particularly suitable for intelligent management of a present power grid.

Description

A kind of intelligent controller of prepared auto restart dual power supply device

Technical field

The utility model relates to a kind of dual power supply device intelligent controller, relates in particular to a kind of intelligent controller of the dual power supply device with prepared auto restart function.

Background technology

Transformation along with modern intelligent grid, the scale of electric power system is increasing, system configuration becomes increasingly complex, performance requirement is more and more higher, traditional prepared auto restart dual power supply device has been difficult to meet user's requirement, because traditional dual power supply device is generally to lean on the logic control of relay to complete, generally adopts switching mode at a slow speed, have that switching time is long, impulse current large, may expansion accident etc. shortcoming, can not meet the intelligent management of modern power network.

Summary of the invention

The purpose of this utility model is to overcome the deficiency of conventional art, a kind of intelligent controller that utilizes the prepared auto restart dual power supply device of modern high tech method structure is provided, both applicable to mesohigh electric power system, be also applicable to low-voltage power supply system, to meet the intelligent management of modern power network.

For achieving the above object, the utility model adopts a kind of like this intelligent controller of prepared auto restart dual power supply device, comprise program software, single chip machine controlling circuit and the accessory power supply module being attached thereto thereof, sample of signal module, position detecting module, parameter arranges module, output control module and communication interface modules, described accessory power supply module from power end obtain AC power after rectifying and wave-filtering is for DC power supply for each active module embedded therein of dual power supply device intelligent controller provides power supply, described communication interface modules can be connected with background computer to form the total management system of each electric supply installation in electrical network, described sample of signal module is taken out alternating voltage from power supply end and user load end, electric current and zero-sequence current analog signal are inputted described single chip machine controlling circuit after A/D is converted to digital signal, described parameter arranges module the protective feature of dual power supply unit protection circuit breaker is carried out to definite value setting, like this, the AC signal that described single chip machine controlling circuit is obtained according to sample of signal module, the protective circuit breaker position signalling that position detecting module obtains and parameter arrange module and the settings of protective circuit breaker protective feature are analyzed more afterwards to the conversion motor that outputs control signals to dual power supply device by described output control module switch, to ensure that another road power supply can drop into rapidly after any road power supply breaks down, to form uninterruptible power system.

Further arrange, the voltage that described single chip machine controlling circuit is obtained according to sample of signal module, after electric current and zero sequence current signal, according to described parameter, module is set to electric current, after the protection settings of voltage and zero-sequence current are analyzed relatively, as load overcurrent, when line short or Leaked Current of Line to Ground, single-chip microcomputer exports control signal, the protective circuit breaker that exports dual power supply device by described output control module to carries out separating brake dropout, thereby form outside the protection tripping function that not only protective circuit breaker itself has, the pressure tripping function that single-chip microcomputer also can carry out protective circuit breaker, thereby form the double tripping function of protective circuit breaker, further strengthened the protection reliability of dual power supply device.

Further arrange, described parameter arranges module and can for device, carry out without priority prepared auto restart and the setting that has priority prepared auto restart duplicate supply, take determine two-way power supply power supply each other stand-by power supply or for commonly using power supply, one is stand-by power supply, when be set to without priority prepared auto restart stand-by power supply each other time, one road power supply another road power supply that breaks down drops into automatically, after Failure elimination power supply no longer switchback to former power supply, when being set to one of priority prepared auto restart, it is conventional power supply, one while being stand-by power supply, when the conventional power supply power supply standby electricity consumption source automatic that breaks down drops into, when conventional power failure, eliminate and can be switched to conventional power supply by auto back again.

Accompanying drawing explanation

Fig. 1 is the utility model embodiment prepared auto restart dual power supply principle of device block diagram.

Fig. 2 is the intelligent controller principle block diagram of the utility model embodiment prepared auto restart dual power supply device.

Embodiment

The utility model embodiment is a kind of intelligent controller of prepared auto restart dual power supply device, as shown in Figure 1, dual power supply device is by power supply 1, power supply 2 two road electric power generating compositions, by protective circuit breaker 1 or 2 to customer power supply, by double-power intelligent controller from power end, circuit breaker output loading end takes out voltage, electric current and leakage current signal, if controller according to the breaker protection signal of sampled signal and setting, analyze relatively after You Yi road power phase shortage be converted to rapidly another power supply and continue power supply to user, if load overload or short circuit or electric leakage ground connection detected, controller can be exported control signal and make protective circuit breaker tripping operation disjunction, the theory of constitution block diagram of the intelligent controller of described prepared auto restart dual power supply device as shown in Figure 2, comprise program software, single chip machine controlling circuit and the accessory power supply module being attached thereto thereof, sample of signal module, position detecting module, parameter arranges module, output control module and communication interface modules, described accessory power supply module from power end obtain AC power after rectifying and wave-filtering is for DC power supply for the conversion motor of dual power supply device and each active module embedded therein of intelligent controller provide power supply, described communication interface modules can be connected with background computer to form the total management system of mains supply device, described sample of signal module is taken out alternating voltage from power supply end and user load end, electric current and zero-sequence current analog signal input to described single chip machine controlling circuit after A/D is converted to digital signal, described parameter arranges module the protective feature of dual power supply unit protection circuit breaker is carried out to definite value setting, like this, the AC signal that described single chip machine controlling circuit can be obtained according to sample of signal module, the protective circuit breaker position signalling that position detecting module obtains and described parameter arrange module the protective feature settings of protective circuit breaker are analyzed relatively, if You Yi road power phase shortage is exported the conversion motor of control signal by dual power supply device and is switched to rapidly another power supply and continue power supply to form uninterruption power source system to user.

Further arrange, the voltage that described single chip machine controlling circuit is obtained according to sample of signal module, electric current and zero sequence current signal and parameter arrange the electric current of module to protective circuit breaker, after the protection settings of voltage and zero-sequence current are analyzed relatively, as there is circuit overvoltage, load overcurrent, when line short or Leaked Current of Line to Ground, single-chip microcomputer exports control signal, the protective circuit breaker that exports dual power supply device by described output control module to carries out separating brake dropout, thereby form outside the protection tripping function that not only protective circuit breaker itself has, the pressure tripping function that single-chip microcomputer also can carry out protective circuit breaker, thereby form the double tripping function of protective circuit breaker, further strengthened the protection reliability of dual power supply device.

Further arrange, by described parameter, module is set and duplicate supply has been carried out having the setting of priority prepared auto restart for device, the first via is set to conventional power supply, the second tunnel is set to stand-by power supply, after the conventional power supply of the first via breaks down, No. second stand-by power supply puts into operation immediately automatically, and after the conventional power failure of the first via is eliminated, described prepared auto restart dual power supply device again can auto back be switched to the conventional power supply of the first via and continues to power.

Claims

1. the intelligent controller of a prepared auto restart dual power supply device, comprise program software, single chip machine controlling circuit and the accessory power supply module being attached thereto thereof, sample of signal module, position detecting module, parameter arranges module, output control module and communication interface modules, described accessory power supply module obtains AC power each module for dual power supply device and intelligent controller after rectifying and wave-filtering is for DC power supply from power end power supply is provided, described communication interface modules can be connected with background computer, described sample of signal module is inputted described single chip machine controlling circuit from power end and load end taking-up AC analogue signal after A/D is converted to digital signal, described parameter arranges module the protective feature of dual power supply device is carried out to definite value setting, like this, described single chip machine controlling circuit is obtained AC signal according to sample of signal module, the definite value setting that the position signalling that position detecting module obtains and parameter arrange module is analyzed more afterwards the conversion motor that outputs control signals to dual power supply device by described output control module and is carried out electrical source exchange, to ensure that another road power supply can drop into rapidly to form uninterruption power source after any road power supply generation power-off fault.

2. the intelligent controller of prepared auto restart dual power supply device according to claim 1; it is characterized in that: described single chip machine controlling circuit can be obtained definite value setting that AC signal and described parameter arrange module according to sample of signal module and analyze more afterwards and to the protective circuit breaker of dual power supply device, force separating brake to be threaded off by described output control module output control signal, thereby forms the duplicate protection tripping function of protective circuit breaker to circuit.

3. the intelligent controller of prepared auto restart dual power supply device according to claim 1, it is characterized in that: described parameter arranges module and can for device, carry out without priority prepared auto restart and the setting that has priority prepared auto restart duplicate supply, take and determine that stand-by power supply or is for commonly using power supply each other for two-way power supply power supply, one is stand-by power supply.